CA ModelServer 0.9.12 1 0 0 0 0 0 0 0 0 0 0 86.8910 50.6140 23.3960 CA 0 2 0 0 0 0 0 0 0 0 0 0 M END > NlF1HzXOO2OXPrgrjr7K2Q > 2025-07-09 09:56:12 > 0.9.12 > ligand > pdb-bcif > 4ik9 > atom_site > {"label_asym_id":"E","auth_seq_id":504} > 53 > 7 > 5 > 232 > 0 > 1 $$$$